JPS6326861A - Disk loading/unloading device for disk player - Google Patents

Abstract

PURPOSE:To smoothly eject a disk without using a motor by coupling a reverse arm with an auxiliary arm having an extraction pin by a spring so as to mesh a damper gear with the auxiliary arm. CONSTITUTION:In extracting a disk 12 after the end of playing, an eject lever 25 is pushed into the direction of arrow A. In the loading state of the disk 12, the skirt of a slope side 30 of a 2nd pushing piece 31 touches a lock projection 8 of a disk case 2, the eject lever 25 is slided in the direction of arrow A and the lock projection 32 of the eject lever 25 and the lock piece 14 of the reverse arm 10 are parted, then in pushing the eject lever 25 in the direction of arrow A, the lock projection 8 slides onto the slope side 30 of the 2nd push piece 31 to turn the disk case 2 clockwise against the energizing force of the spring 9 thereby floating the disk 12, and the hole 35 of the disk 12 is parted from the center projection 36. In pushing further the eject lever 25, the lock projection 8 slides onto the slope side 30 and the lower face of the disk case slides onto the slope side 28, then the front opening of the disk case 2 is floated.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a disc loading/unloading device for a disc player that utilizes the biasing force of a spring to load/unload a disc.

(b) Conventional technology In order to play a disc in an optical disc player, the disc is placed on a turntable, chucked from above by a chuck member, and the disc is set in a playing state. To take out the disc for replacement, contrary to the above, first the chuck by the chuck member is released, and then the disc is removed from the turntable and ejected. There are two methods of loading and unloading the disc, one in which the disc is placed in a playable state and one in which it is taken out.The other is to load and unload the disc directly onto the turntable, and the other is to use a disc tray to load and unload the disc. Many players use a system in which the disc is directly attached to and removed from the turntable, but horizontal disc players, in which the disc is held horizontally and played, use a disc tray as described in Japanese Patent Laid-Open No. 60-80159. A motor moves the disc between a closed position where the disc is rotated by a turntable and an open position where the disc is taken in and taken out, thereby attaching and removing the disc.

(C) Problems to be Solved by the Invention As mentioned above, in conventional horizontal disc players, discs are stored in a disc tray, and the disc tray is loaded horizontally by a motor to load and unload the disc. However, since a disk tray and a motor are used to slide the disk tray, the structure is complicated, and there are two cases in which the disk tray can be slid toward the open position and when it is slid toward the closed position. The electric circuit also became complicated because it was necessary to reverse the direction of rotation of the motor.

In view of this, the present invention provides a disk loading/unloading device for a disk player, which allows loading and unloading of disks without using a disk tray even in a horizontal disk player.

(d) Means for Solving the Problems As described above, the disc loading/unloading device for a disc player of the present invention includes a disc case having one end rotatably attached in the vertical direction and having a storage section, and a disc case for mounting the disc. A reversing arm that has a first pin and a locking piece and is positioned in either the installed state or the disc ejecting state by means of a reversing spring, and a gear part that meshes with a second pin for disc ejecting and a damper gear. an auxiliary arm connected to the reversing arm with a spring; and an engaging protrusion that is slidably provided and engages with a push-up piece that rotates one end of the disc case upward and a locking piece of the reversible arm. It consists of an ejector lever and an ejector lever.

(*) Function The disc loading/unloading device of the disc player of the present invention has the above-described configuration, and when the disc is pushed into the storage section of the disc case by hand, the disc hits the second pin and the auxiliary arm is moved clockwise. Since rotation is allowed, the reversing arm connected by a spring can also be rotated clockwise.

When the reversing arm is rotated to a certain angle, the direction of the urging force of the reversing spring changes, and the reversing arm is rotated clockwise by the urging force of the reversing spring, so that the first pin hits the disk. Attach the disc. On the other hand, when ejecting the disc, when the eject lever is pushed in, the reversing arm is rapidly rotated counterclockwise by the biasing force of the reversing spring, but the auxiliary arm, which is biased by the spring against the reversing arm, has a damper action. Since the disc can be rotated gradually counterclockwise, the disc is gradually pushed out by the second pin of the auxiliary arm and taken out to the outside.

(F) Embodiment A disc loading/unloading device for a disc player according to the present invention will be explained with reference to the drawings.

(1) is the chassis, and (2) is one end of the
) is a disc case that is rotatably supported by a shaft (4) on a support (3) on the top. ) is formed. The disc case (2) has a locking protrusion (8) projecting laterally on the side wall (7), and the front end is urged downward by a spring (9). (10) is located at the center. a reversing arm whose part is pivoted on an axle (11) on the chassis (1), with a first arm at one end for retracting the disc (12);
A locking piece (14) having a pin (13) and projecting laterally is formed on the outer periphery of the central portion. (15) is a reversing spring having a winding part (16) in the center, one end (17) is fixed to the end opposite to the end having the first pin (13) of the reversing arm (10); The end (18) is connected to the chassis (1
) is inserted into the small hole (19) and fixed. (20) is an auxiliary arm pivotally supported by the shaft (11), and the disc (
12) and the second pin (21) and gear part (22) for discharging the
said reversing arm (10) with a spring (23).
is connected to. (24) is the reversing arm (10)
This is a damper gear that meshes with the gear portion (22) of the auxiliary arm (20), and has a damper action to provide an appropriate amount of friction and prevent the auxiliary arm (20) from rotating suddenly. (2
5) is an eject lever, which uses pins (27) (27) passed through long holes (26) (26) to eject the chassis (
1), a first push-up piece (29) that is slidably provided on the disk case (29) and has an inclined side (28) and engages with the lower surface of the disk case (2); The second push-up piece (31) that engages with the locking protrusion (8>) and the reversing arm (
Engagement protrusions (32) that engage with the locking pieces (14) of 10) are formed respectively. (33) is attached to a rotating shaft (34) that can be fully rotated by a motor (not shown). The turntable has a truncated conical central protrusion (36) into which the hole (35) of the disc (12) is fitted, and a disc mounting base (37). It is a chuck member having an f! (40) that engages the inwardly projecting edge (39), a disk suppressing portion (41) and a ball (42).

Next, the operation of the disc loading/unloading device of the disc player of the present invention will be explained.

To load a disc prior to playing, the front opening of the disc case (2) is raised as shown in FIG. In a state of refusal, push the disc (12) by hand into the storage section (6) of the disc case (2) through the front opening. When the disk (12) is pushed in, it hits the second pin (21) of the auxiliary arm (20) and the auxiliary arm (20) is pushed in as shown in Figure 2.
Rotate clockwise. When the auxiliary arm (20) is rotated clockwise, a force is applied to rotate the reversing arm (10), which can be fully connected by the spring (23), clockwise. In the open state shown in FIG. 1, the reversing arm (10) is biased counterclockwise by the reversing spring (15), but the biasing force of the reversing spring (15) causes the spring (23) to Because the urging force is strong, the auxiliary arm (20
) rotates clockwise, the reversing arm (10) also rotates clockwise, and when the reversing arm (10) rotates clockwise to a certain extent, the direction of the biasing force of the reversing spring (15) changes. , the reversing arm (10) is connected to the reversing spring (
15) Rotate it clockwise using the urging force. When the reversing arm (10) is rotated, the first
The pin (13) hits the periphery of the disk (12) and pushes the disk (12) so that the hole (35) of the disk (12) is located on the central protrusion (36) of the turntable (33). When the hole (35) of the disk (12) is reversed to the central protrusion (36) of the turntable (33), the locking piece (14) of the reversing arm (10) engages with the eject lever (25). When it hits the protrusion (32), slide the eject lever (25) in the direction of arrow B. The disk (
12) before starting to insert the eject lever (25).
), the lower surface of the disc case (2) touches the first push-up piece (29), and the locking protrusion (8) engages with the second push-up piece (31), so the front end of the disc case (2) is floated up, but as the eject lever (25) slides in the direction of arrow B, the lower surface of the disk case (2) slides down the inclined side (28) of the first push-up piece (29) and is locked again. Projection (
8) also slides down the inclined side (30) of the second push-up piece (31), so the disc case (2) is rotated counterclockwise by the spring (9) and opens the hole (35) of the disc (12). It fits into the central protrusion (36) and the disc (
12) is placed on the turntable (33). When the disc (12) is placed on the turntable (33), the disc (12) can float above the bottom of the disc case (2), while the chuck member (38) closes the hole (35) of the disc (12). ) around the periphery of the disk (1
Perform chucking in 2). Therefore, by operating the playback button, the motor rotates, thereby rotating the disk (12) together with the turntable, and the signals that have been completely recorded on the disk (12) are played.

To remove the disc (12) after the disc (12) has finished playing, push the eject lever (25) in the direction of arrow A. When the disc (12) is installed, the second push-up piece (
The hem of the inclined side (30) of 31) hits the locking protrusion (8) of the disc case (2>), and the eject lever (25) is slid in the direction of arrow A, and the eject lever (25)
The engaging protrusion (32) of the reversing arm (10) and the locking piece (1) of the reversing arm (10)
4>, so the eject lever (
25) in the direction of arrow A, the locking protrusion (8) slides up on the inclined side (30) of the second push-up piece (31) and pushes the disc case (2) under the biasing force of the spring (9). The disk (12) is rotated clockwise against the force, and the disk (12) is floated and the hole (35) of the disk (12) is removed from the central protrusion (36). When the eject lever (25) is pushed further, the locking protrusion (8) moves to the inclined side (30) of the second push-up piece (31).
Since the lower surface of the disk case (2) slides up the inclined side (28) of the first push-up piece (29), the front opening of the disk case (2) is floated as shown in FIG. When the eject lever (25) is pushed in, the disc case (2) will be floated and the eject lever (25) will be lifted up.
) of the locking piece (32) of the reversing arm (10)
14), the reversing arm (10) is rotated counterclockwise.As mentioned above, when the eject lever (25) is pushed in, the reversing arm (10) is rotated counterclockwise.
) and a reversing spring (15) whose urging force changes counterclockwise when the reversing arm (10) is rotated by a certain angle.
This allows it to rapidly rotate counterclockwise.

However, since the gear part (22) of the auxiliary arm (20) connected to the reversing arm (10) and the spring (23) meshes with the damper gear <24>, the damper acts and the auxiliary arm (20) can be rotated slowly. Therefore, the second pin (21> on the auxiliary arm (20) also slowly pushes out the periphery of the disk (12>), so the disk (12>) is slowly ejected. 6)
Since the disc (12) is ejected further and exposed to the outside, the disc (12) can be taken out by hand.

(G) Effects of the Invention As described above, the disk attaching/detaching device for a disk player of the present invention has a reversing arm and an auxiliary arm having a take-out pin connected by a spring, and a damper gear meshed with the auxiliary arm. Even if the reversing arm is rotated rapidly when taking out the disc, the auxiliary arm is rotated slowly due to the damper action. Therefore, since the ejection pin gently pushes out the peripheral edge of the disk, the disk can be smoothly ejected without using a morph.

[Brief explanation of drawings]

The figures all relate to the disc loading/unloading device of the disc player of the present invention. Figure 1 is a plan view showing a state in which a disc is taken out, Figure 2 is a plan view showing a state in the middle of loading or unloading a disc, and Figure 3 is a plan view showing a state in which a disc is being loaded or taken out. FIG. 4 is a plan view showing the disc mounted state, FIG. 4 is a sectional view showing the disc removed state, and FIG. 5 is a sectional view showing the disc mounted state. (1)...Chassis, (2)...Disk case,
6)...Storage section, (10)...Reversing arm,
(12)...Disk, (13)...First pin,
(15)... Reversing spring, (20)... Auxiliary arm, (21)... Second pin, (22)...
Gear part, (23)...Spring, (24)...
Damper gear, (25)...Eject lever, (2
9)...First push-up piece 1. (31)...Second push-up piece. Applicant: Sanyo Electric Co., Ltd. and one other agent Patent attorney Takuji Nishino and one other person Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) A disc case that has a storage section and one end of which is rotatably mounted in the vertical direction, a first pin for mounting the disc, and a locking piece, and a reversing spring that allows the disc to be mounted or removed. a reversing arm positioned in either state; an auxiliary arm connected to the reversing arm with a spring and having a gear portion meshing with a second pin for disc ejection and a damper gear; A disc loading/unloading device for a disc player comprising an eject lever having a push-up piece that rotates one end of a disc case upward and an engagement protrusion that engages with a locking piece of a reversing arm.